package com.gzr.demo01;

public class Race implements Runnable{

    //胜利者
    private static String winner;

    @Override
    public void run() {
        for (int i = 0; i <= 1000; i++) {
            //兔子睡觉
            if ("兔子".equals(Thread.currentThread().getName()) && i % 999 == 0) {
                try {
                    Thread.sleep(1);
                } catch (InterruptedException e) {
                    throw new RuntimeException(e);
                }
            }

            //判断比赛是否结束
            boolean flag = gameOver(i);

            //比赛结束终止程序
            if (flag) {
                break;
            }

            System.out.println(Thread.currentThread().getName()+"-->跑了"+i+"步");

        }
    }

    //判断是否完成比赛
    private boolean gameOver(int steps) {

        //判断是否已经存在胜利者
        if (winner!=null) {
            return true;
        }

        if (steps>=1000) {
            winner = Thread.currentThread().getName();
            System.out.println("winer is"+winner);
            return true;
        }

        return false;
    }

    public static void main(String[] args) {
        Race race = new Race();

        new Thread(race,"兔子").start();
        new Thread(race,"乌龟").start();

    }
}
